Oil lamp



FIG. 1 is a perspective view of an oil lamp showing my new design;

FIG. 2 is a right side view of the oil lamp;

FIG. 3 is a left side view of the oil lamp;

FIG. 4 is a front view of the oil lamp;

FIG. 5 is a back side view of the oil lamp;

FIG. 6 is a top view of the oil lamp; and,

FIG. 7 is a bottom view of the oil lamp.

The broken line showing of a wick is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for the oil lamp, as shown and described. 